.container{
    width: 1200px;
    margin: 30px auto;
    display: flex;
    justify-content: space-between;
}
.menu{
    width: 250px;
    border: 1px solid #c0f8e4;
}
.menu_item{
    line-height: 50px;
    font-size: 14px;
    padding: 0 20px;
    cursor: pointer;
    box-sizing: border-box;
    border-bottom: 1px solid rgba(241, 241, 241, 0.86);
}
.menu_item:hover{
    background-color: #ff8e03;
    color: #fff;
}

.active{
    cursor: pointer;
    background-color: #ff8e03;
    color: #fff;
    line-height: 50px;
    font-size: 14px;
    padding: 0 20px;
}
.content{
    flex: 1;
    margin-left: 40px;
    border: 1px solid #c0f8e4;
}